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Finding the Fourth Proportional to 124,194.46, 186,319.36 and 45,308.68

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Solution

The fourth proportional to 124,194.46, 186,319.36 and 45,308.68 is: 67,973.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,194.46 : 186,319.36 = 45,308.68 : x
  2. Step 2: Convert to fraction form
    124,194.46/186,319.36 = 45,308.68/x
  3. Step 3: Cross multiply
    124,194.46x = 186,319.36 × 45,308.68
  4. Step 4: Simplify right side
    124,194.46x = 8,441,884,260.04
  5. Step 5: Solve for x
    x = 8,441,884,260.04/124,194.46
  6. Step 6: Final answer
    x = 67,973.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.